You have to watch for the space between 24 and 497. That is the actual space even if zero it. So you can go to negative numbers for a little tighter spacing. But then 444 branch will be overlapping. You might better reduce the sibling distance of the inbetween leaves.
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percusseJul 18 '12 at 11:58

1 Answer
1

There's no pretty way to do this, since tikz-qtree is designed to automatically make enough space for the complete width of the daughters of any particular node. As percusse points out in the comments, if you reduce the sibling distance, you end up with your 444 node overlapping the others. This is what needs to be avoided. We can do this by adding specific node sizes to certain nodes, and making the level 1 sibling distance negative. The one downside to this is that the bounding box of the picture is artificially large, so we need to manually adjust the bounding box.